[openeuler:OLK-6.6 2454/2454] drivers/coda/coda.c:264: warning: Function parameter or member 's_smmu_id' not described in 'is_cc_vmid'

[openeuler:OLK-6.6 2454/2454] drivers/coda/coda.c:264: warning: Function parameter or member 's_smmu_id' not described in 'is_cc_vmid'

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   9b85bcf0e6357841885264f42859bec05c9073f4
commit: c5161d7e11a7e30755b2ec55aaebfd500193cbbc [2454/2454] virtCCA supports SR-IOV in CoDA scenarios.
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20250704/202507040646.2QNfCtsv-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250704/202507040646.2QNfCtsv-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507040646.2QNfCtsv-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/coda/coda.c:264: warning: Function parameter or member 's_smmu_id' not described in 'is_cc_vmid'
>> drivers/coda/coda.c:660: warning: Function parameter or member 'pci_dev' not described in 'virtcca_create_ste_entry'
>> drivers/coda/coda.c:660: warning: Excess function parameter 'smmu' description in 'virtcca_create_ste_entry'
>> drivers/coda/coda.c:660: warning: Excess function parameter 'master' description in 'virtcca_create_ste_entry'
>> drivers/coda/coda.c:660: warning: Excess function parameter 'sid' description in 'virtcca_create_ste_entry'
--
>> drivers/iommu/arm/arm-smmu-v3/arm-s-smmu-v3.c:56: warning: Function parameter or member 's_smmu_id' not described in 'virtcca_smmu_cmdq_need_forward'


vim +264 drivers/coda/coda.c

ad540a13eb8292 yangxiangkai 2024-09-20  254  
ad540a13eb8292 yangxiangkai 2024-09-20  255  /**
c5161d7e11a7e3 yxk          2025-05-07  256   * is_cc_vmid - Whether the VM is confidential VM
c5161d7e11a7e3 yxk          2025-05-07  257   * @vmid: VM id
ad540a13eb8292 yangxiangkai 2024-09-20  258   *
ad540a13eb8292 yangxiangkai 2024-09-20  259   * Returns:
c5161d7e11a7e3 yxk          2025-05-07  260   * %true if the VM is confidential
c5161d7e11a7e3 yxk          2025-05-07  261   * %false if the VM is not confidential
ad540a13eb8292 yangxiangkai 2024-09-20  262   */
c5161d7e11a7e3 yxk          2025-05-07  263  bool is_cc_vmid(u32 vmid, u64 s_smmu_id)
ad540a13eb8292 yangxiangkai 2024-09-20 @264  {
ad540a13eb8292 yangxiangkai 2024-09-20  265  	int bkt;
c5161d7e11a7e3 yxk          2025-05-07  266  	struct coda_dev_hash_node *obj;
c5161d7e11a7e3 yxk          2025-05-07  267  	bool secure = false;
ad540a13eb8292 yangxiangkai 2024-09-20  268  
c5161d7e11a7e3 yxk          2025-05-07  269  	spin_lock(&coda_dev_lock);
c5161d7e11a7e3 yxk          2025-05-07  270  	hash_for_each(g_coda_dev_htable, bkt, obj, node) {
c5161d7e11a7e3 yxk          2025-05-07  271  		if (vmid > 0 && obj->vmid == vmid && obj->s_smmu_id == s_smmu_id) {
c5161d7e11a7e3 yxk          2025-05-07  272  			secure = obj->secure;
c5161d7e11a7e3 yxk          2025-05-07  273  			spin_unlock(&coda_dev_lock);
c5161d7e11a7e3 yxk          2025-05-07  274  			return secure;
c5161d7e11a7e3 yxk          2025-05-07  275  		}
ad540a13eb8292 yangxiangkai 2024-09-20  276  	}
ad540a13eb8292 yangxiangkai 2024-09-20  277  
c5161d7e11a7e3 yxk          2025-05-07  278  	spin_unlock(&coda_dev_lock);
c5161d7e11a7e3 yxk          2025-05-07  279  	return secure;
ad540a13eb8292 yangxiangkai 2024-09-20  280  }
ad540a13eb8292 yangxiangkai 2024-09-20  281  EXPORT_SYMBOL_GPL(is_cc_vmid);
ad540a13eb8292 yangxiangkai 2024-09-20  282  

:::::: The code at line 264 was first introduced by commit
:::::: ad540a13eb8292fc92651b3bf281088a502a85f9 virtcca feature: fix msi iova map

:::::: TO: yangxiangkai <yangxiangkai@huawei.com>
:::::: CC: yangxiangkai <yangxiangkai@huawei.com>

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https://github.com/intel/lkp-tests/wiki